Polaroid rapid angle conversion device and use method thereof

Abstract

The invention relates to a rapid angle conversion device for a polaroid and a use method thereof. The device comprises a polaroid mounting base, a hand wheel, a fixing ring, a polaroid, a plurality of magnets and a plurality of sub-screws. A polaroid is fixedly installed on the polaroid installation base, the hand wheel is installed on the polaroid installation base in a sleeved mode and locked by a screw, and the fixing ring is installed on the hand wheel in a sleeved mode and can rotate relative to the hand wheel. A plurality of magnet fixing holes are dispersedly formed in two opposite circumferential surfaces of the fixing ring and the hand wheel, and magnets with opposite polarities are mounted in the magnet fixing holes. The hand wheel is rotated to drive the polaroid installation base and the polaroid to rotate, when the hand wheel and the fixing ring are magnetically attracted together, it shows that the polaroid rotates by a fixed angle, and the rotation angle of the polaroid can be further adjusted by continuously rotating the hand wheel. The rapid angle conversion device for the polaroid has the advantages of simple structure, convenience in operation, low cost and the like, fixed-angle rotation of the polaroid is realized, the adjustment precision is high, and the angle retentivity is good.

Description

Technical Field

[0001] This invention relates to the field of optical equipment technology, specifically to a device for rapidly changing the angle of a polarizer and its usage method. Background Technology

[0002] A polarizer is a common type of optical lens that selectively transmits natural light. When a beam of natural light passes through a polarizer, only light whose vibration direction is parallel to the polarization direction is allowed to pass through, while light whose vibration direction is perpendicular to the polarization direction is completely blocked. The resulting beam is called polarized light. Based on this principle, rotating the polarizer adjusts the polarization direction of the light beam.

[0003] Polarizers and polarized light have a wide range of applications in optical imaging, displays, and automotive lighting. Currently, polarizers are typically fixedly mounted on equipment. When it's necessary to rotate the polarizer, the mounting device must be removed first, then the polarizer rotated to the target angle, and finally the mounting device reinstalled. This process is clearly cumbersome and inefficient. Summary of the Invention

[0004] The main objective of this invention is to overcome the aforementioned problems in the prior art and provide a device for quickly adjusting the angle of a polarizer. This device includes a polarizer mounting base 1, a handwheel 2, a fixing ring 3, and a polarizer 4. The polarizer mounting base 1 is fixedly connected to the handwheel 2 and cannot rotate relative to it, while the handwheel 2 is movably connected to the fixing ring 3 and can rotate relative to it. Rotation of the handwheel 2 drives the polarizer mounting base 1 and the polarizer 4 fixed on it to rotate, thereby adjusting the angle of the polarizer 4.

[0005] In the above scheme, magnet fixing holes A 2-4 are distributed on the circumference of the handwheel 2, and matching magnet fixing holes B 3-1 are distributed on the circumference of the fixing ring 3. Magnets 5 are installed in both magnet fixing holes A 2-4 and magnet fixing holes B 3-1, with the magnets 5 facing each other and having opposite magnetic properties. By magnetic attraction, the polarizer 4 can be easily and quickly rotated to a specific angle.

[0006] Specifically, the number of magnet fixing holes A 2-4 and magnet fixing holes B 3-1 are both 2-12 sets, and they are evenly distributed on the circumferential surface of the handwheel 2 and the fixing ring 3. The rotation angle of the polarizer 4 each time is related to the number of magnet sets. When the number of magnet sets is 2, 3, 4, 6, 8, or 12, the rotation angle of the polarizer each time is 180°, 120°, 90°, 60°, 45°, and 30°, respectively.

[0007] In the above scheme, the polarizer mounting base 1 is provided with a polarizer mounting hole 1-2, and a polarizer limiting groove 1-3 is provided in the polarizer mounting hole 1-2. The polarizer 4 is fixed in the polarizer mounting hole 1-2 and is held in place by the polarizer limiting groove 1-3. This design can both fix the polarizer 4 on the polarizer mounting base 1 and prevent the polarizer 4 from rotating in the polarizer mounting hole 1-2.

[0008] In addition, continuous or intermittent V-grooves are provided on the circumferential surface of the polarizer mounting base 1. The handwheel 2 is fitted onto the polarizer mounting base 1 and is limited by the V-grooves.

[0009] In the above scheme, at least one screw hole A2-1 is also provided on the circumferential surface of the handwheel 2. After the female screw 6 passes through the screw hole A2-1, it contacts the circumferential surface of the polarizer mounting base 1, thereby fixing the polarizer mounting base 1 and the handwheel 2 together.

[0010] In the above scheme, anti-slip patterns 2-2 are also provided on the circumferential surface of handwheel 2. The main function of the anti-slip patterns is to prevent slippage when turning handwheel 2 by hand.

[0011] In the above scheme, continuous or intermittent limiting grooves 2-3 are also provided on the circumferential surface of the handwheel 2. The fixing ring 3 is fitted onto the handwheel 2 and is limited by the limiting grooves 2-3.

[0012] In the above scheme, the circumferential surface of handwheel 2 has a stepped structure. Screw hole A 2-1 and anti-slip pattern 2-2 are located on the circumferential surface of handwheel 2 with a larger diameter, while limiting groove 2-3 and magnet fixing hole A 2-4 are located on the circumferential surface of handwheel 2 with a smaller diameter.

[0013] In the above scheme, a screw hole B 3-2 is provided on the circumferential surface of the fixing ring 3. If necessary, the female screw 6 passes through the screw hole B 3-2 and contacts the circumferential surface of the handwheel 2, thereby locking the fixing ring 3 and the handwheel 2.

[0014] In the above scheme, a thread 3-3 is also provided on the circumferential surface of the fixing ring 3. The polarizer quick angle conversion device is fixedly connected to external equipment such as optical lenses through the thread 3-3.

[0015] The second objective of this invention is to provide a method for using the above-mentioned polarizer quick angle conversion device, comprising: rotating the handwheel 2 to drive the polarizer mounting base 1 and the polarizer 4 fixed thereon to rotate; when the handwheel 2 is magnetically attracted to the fixing ring 3, the angle of the polarizer 4 is adjusted; continue to rotate the handwheel 2 so that it is magnetically attracted to the fixing ring 3, and the angle of the polarizer 4 can be continuously adjusted.

[0016] In the above scheme, the polarizer 4 is adjusted in integer multiples of the angle, such as 30°, 45°, 60°, 90°, 120°, 180°, etc.

[0017] In the above scheme, after adjusting and tightening the screw 6, the handwheel 2 and the fixing ring 3 are fixed and locked. Before adjusting, loosen the screw 6 to unlock the handwheel 2 and the fixing ring 3.

[0018] This invention utilizes the magnetic attraction of magnets to rotate a polarizer by a specific angle, facilitating the generation of polarized images at different angles. The polarizer is rotated using a handwheel, making operation simple and quick. Compared with existing similar products, the advantages of this invention are mainly reflected in: (1) the overall structure of the device is simple, easy to operate, and has low production and usage costs; (2) the polarizer is rotated at a fixed angle using the magnetic attraction principle, achieving high adjustment accuracy and good angle retention; (3) by selecting polarizer mounting bases of different sizes and matching them with different numbers of magnet groups, it can adapt to polarizers of different sizes and various fixed angle adjustments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the polarizer rapid angle conversion device described in this invention.

[0020] Figure 2 This is a three-dimensional schematic diagram of a polarizer mounting base.

[0021] Figure 3 This is a 3D schematic diagram of the handwheel.

[0022] Figure 4 This is a three-dimensional schematic diagram of the fixed ring.

[0023] Figure 5 This is a schematic diagram illustrating the use of the polarizer rapid angle conversion device described in this invention.

[0024] Reference numerals in the attached diagram: 1 Polarizer mounting base, 1-1 V-groove, 1-2 Polarizer mounting hole, 1-3 Polarizer limiting groove; 2 Handwheel, 2-1 Screw hole A, 2-2 Anti-slip pattern, 2-3 Limiting groove, 2-4 Magnet fixing hole A; 3 Fixing ring, 3-1 Magnet fixing hole B, 3-2 Screw hole B, 3-3 Thread; 4 Polarizer, 5 Magnet, 6 Sub-screw. Detailed Implementation

[0025] To enable those skilled in the art to fully understand the technical solutions and beneficial effects of the present invention, a detailed description is provided below in conjunction with specific embodiments and accompanying drawings. It should be emphasized that the following embodiments are merely a part of the many embodiments of the present invention. Besides these, the present invention can have many other embodiments, and any simple improvements made based on these embodiments or implementation methods will fall within the protection scope of the present invention.

[0026] like Figure 1As shown, the polarizer quick angle conversion device provided by the present invention mainly includes a polarizer mounting base 1, a handwheel 2, a fixing ring 3, a polarizer 4, and several magnets 5 and screws 6 (i.e., screws or threaded rods). The structures of these components are as follows: The structure of polarizer mounting base 1 is as follows Figure 2 As shown, the entire structure is annular. A circular polarizer mounting hole 1-2 is provided in the center of the polarizer mounting base 1, and one or more polarizer limiting grooves 1-3 are provided on the inner wall of the circular polarizer mounting hole 1-2. The polarizer 4 is fixed in the polarizer mounting hole 1-2 and is held in place by the polarizer limiting grooves 1-3 to prevent rotation. In addition, a V-groove 1-1 is provided on the circumferential surface of the polarizer mounting base 1 for assembling the handwheel 2.

[0027] The structure of handwheel 2 is as follows Figure 3 As shown, its overall shape is also circular, but the difference lies in the fact that steps with varying heights are designed on the circumference of handwheel 2. On the larger diameter circumference of handwheel 2 (i.e.,...) Figure 2 On the right end, there are multiple (e.g., 2-6) screw holes A 2-1 and anti-slip patterns 2-2 evenly or symmetrically distributed. On the smaller diameter circumferential surface of the handwheel 2 (i.e.... Figure 2 On the left end, there are multiple (e.g., 2-6) magnet fixing holes A 2-4 and limiting grooves 2-3 evenly or symmetrically distributed. A magnet 5 is fixed in the magnet fixing hole A 2-4.

[0028] The structure of the fixed ring 3 is as follows Figure 4 As shown, the entire ring is circular. A thread 3-3 is provided on the left circumferential surface of the fixing ring 3, and multiple screw holes B 3-2 and magnet fixing holes B 3-1 are evenly or symmetrically distributed on the right circumferential surface, with the screw holes B 3-2 and magnet fixing holes B 3-1 staggered vertically and horizontally. A magnet 5 is also fixed in the magnet fixing hole B 3-1.

[0029] The assembly method of the polarizer rapid angle conversion device provided by the present invention is as follows: The first step is to fix the polarizer 4 in the polarizer mounting hole 1-2 in the middle of the polarizer mounting base 1, and use the polarizer limiting groove 1-3 to limit the polarizer 4 and prevent it from rotating.

[0030] The second step is to mount the handwheel 2 onto the polarizer mounting base 1, allowing it to slide into the V-groove 1-1 on the outer surface of the polarizer mounting base 1. Then, insert the female screw 6 into the screw hole A 2-1 on the surface of the handwheel 2 and tighten it, thereby fixing the handwheel 2 to the polarizer mounting base 1. Next, insert the magnet 5 into the magnet fixing hole A 2-4, with its N or S pole facing outwards.

[0031] Third, fit the retaining ring 3 onto the left side of the handwheel 2, using the limiting groove 2-3 of the handwheel 2 to limit the retaining ring 3. Next, insert the magnet 5 into the magnet fixing hole B 3-1, ensuring that its polarity is different from that of the magnet fixing hole A 2-4, so that opposite poles can attract each other. If necessary, insert the female screw 6 into the screw hole B 3-2 and tighten it, thereby fixing the retaining ring 3 to the handwheel 2 together.

[0032] The fourth step is to fix the polarizer quick angle conversion device to other equipment (optical lens or camera) by using the thread 3-3 on the left end of the fixing ring 3.

[0033] The method of using the polarizer rapid angle conversion device provided by the present invention is as follows: When adjusting the angle of the polarizer, hold the anti-slip pattern 2-2 on the handwheel 2 and turn the handwheel 2 clockwise or counterclockwise (as shown). Figure 5 As shown in the figure, the polarizer 4 rotates together. When the rotation is in place, the magnet 5 on the handwheel 2 and the fixed ring 3 attract each other, and then the rotation can be stopped.

[0034] Obviously, the number and distribution of magnet fixing holes A2-4 and B3-1 can affect the adjustment angle of the polarizer, so adjustments can be made as needed. If there are 4 sets of both, the adjustment angle of the polarizer is 90° with each rotation; if there are 6 sets of both, the adjustment angle of the polarizer is 60° with each rotation.

[0035] The polarizer angle-changing device provided by this invention has the advantages of simple structure, convenient use, and accurate angle adjustment, and has good application prospects in the fields of optical lenses and electronic displays.

Claims

1. A polarizer quick angle turning device, characterized by: The device comprises a polarizer mounting seat, a hand wheel, a fixing ring, and a polarizer, the polarizer is fixed on the polarizer mounting seat, the polarizer mounting seat is fixedly connected with the hand wheel, the hand wheel is connected with the fixing ring and can rotate, thereby driving the polarizer mounting seat and the polarizer to rotate.

2. The apparatus of claim 1, wherein: Magnet fixing holes A are symmetrically arranged on the circumferential surface of the hand wheel, and matched magnet fixing holes B are arranged on the circumferential surface of the fixing ring, and magnets are arranged in the magnet fixing holes A and the magnet fixing holes B, and the magnets are opposite in magnetic property to each other.

3. The apparatus of claim 1, wherein: The polarizer mounting seat is provided with a polarizer mounting hole, and a limiting groove is arranged in the polarizer mounting hole, the polarizer is fixed in the polarizer mounting hole and is clamped by the polarizer limiting groove.

4. The apparatus of claim 1, wherein: A V-shaped groove is arranged on the circumferential surface of the polarizer mounting seat, the hand wheel is sleeved on the polarizer mounting seat and is limited by the V-shaped groove.

5. The apparatus of claim 1, wherein: Screw holes A and anti-skid patterns are arranged on the circumferential surface of the hand wheel, and a screw passes through the screw holes A to lock the hand wheel and the polarizer mounting seat.

6. The apparatus of claim 1, wherein: A limiting groove is arranged on the circumferential surface of the hand wheel, and the fixing ring is sleeved on the hand wheel and is limited by the limiting groove.

7. The apparatus of claim 1, wherein: Screw holes B and threads are arranged on the circumferential surface of the fixing ring, and a screw passes through the screw holes B to lock the fixing ring and the hand wheel, and an external device is fixedly connected with the fixing ring through the threads.

8. The method of using the fast switching angle device of any of claims 1-7, wherein The method comprises the following steps: rotating the hand wheel to drive the polarizer mounting seat and the polarizer fixed thereon to rotate, when the hand wheel is magnetically attracted to the fixing ring, the angle adjustment of the polarizer is completed; continuing to rotate the hand wheel to magnetically attract the fixing ring again, the angle of the polarizer can be continuously adjusted.

9. The method of claim 8, wherein: The polarizer is adjusted at an integer multiple of an angle, and the angle comprises 30°, 45°, 60°, 90°, 120° and 180°.

10. The method of claim 8, wherein: Before adjustment, the screw is loosened to unlock the hand wheel and the fixing ring, and after adjustment, the screw is tightened to lock the hand wheel and the fixing ring.

Images